void
attachUiImpl_destroy(void)
{
if (_attachUiImpl.core_connection != NULL) {
core_connection_close(_attachUiImpl.core_connection);
core_connection_free(_attachUiImpl.core_connection);
_attachUiImpl.core_connection = NULL;
}
}
void
clientfb_destroy(ClientFramebuffer* client_fb)
{
if (client_fb != NULL && client_fb->core_connection != NULL) {
// Disable the reader callback.
qemu_set_fd_handler(client_fb->sock, NULL, NULL, NULL);
// Close framebuffer connection.
core_connection_close(client_fb->core_connection);
core_connection_free(client_fb->core_connection);
client_fb->core_connection = NULL;
}
}
void
userEventsProxy_destroy(void)
{
if (_userEventsProxy.sync_writer != NULL) {
syncsocket_close(_userEventsProxy.sync_writer);
syncsocket_free(_userEventsProxy.sync_writer);
_userEventsProxy.sync_writer = NULL;
}
if (_userEventsProxy.core_connection != NULL) {
core_connection_close(_userEventsProxy.core_connection);
core_connection_free(_userEventsProxy.core_connection);
_userEventsProxy.core_connection = NULL;
}
}
/* Destroys CoreCmdProxy instance. */
void
coreCmdProxy_destroy(void)
{
if (_coreCmdProxy.sync_writer != NULL) {
syncsocket_close(_coreCmdProxy.sync_writer);
syncsocket_free(_coreCmdProxy.sync_writer);
_coreCmdProxy.sync_writer = NULL;
}
if (_coreCmdProxy.sync_reader != NULL) {
syncsocket_close(_coreCmdProxy.sync_reader);
syncsocket_free(_coreCmdProxy.sync_reader);
_coreCmdProxy.sync_reader = NULL;
}
if (_coreCmdProxy.core_connection != NULL) {
core_connection_close(_coreCmdProxy.core_connection);
core_connection_free(_coreCmdProxy.core_connection);
_coreCmdProxy.core_connection = NULL;
}
}
ClientFramebuffer*
clientfb_create(SockAddress* console_socket,
const char* protocol,
QFrameBuffer* fb)
{
char* connect_message = NULL;
char switch_cmd[256];
// Connect to the framebuffer service.
_client_fb.core_connection = core_connection_create(console_socket);
if (_client_fb.core_connection == NULL) {
derror("Framebuffer client is unable to connect to the console: %s\n",
errno_str);
return NULL;
}
if (core_connection_open(_client_fb.core_connection)) {
core_connection_free(_client_fb.core_connection);
_client_fb.core_connection = NULL;
derror("Framebuffer client is unable to open the console: %s\n",
errno_str);
return NULL;
}
snprintf(switch_cmd, sizeof(switch_cmd), "framebuffer %s", protocol);
if (core_connection_switch_stream(_client_fb.core_connection, switch_cmd,
&connect_message)) {
derror("Unable to attach to the framebuffer %s: %s\n",
switch_cmd, connect_message ? connect_message : "");
if (connect_message != NULL) {
free(connect_message);
}
core_connection_close(_client_fb.core_connection);
core_connection_free(_client_fb.core_connection);
_client_fb.core_connection = NULL;
return NULL;
}
// We expect core framebuffer to return us bits per pixel property in
// the handshake message.
_client_fb.bits_per_pixel = 0;
if (connect_message != NULL) {
char* bpp = strstr(connect_message, "bitsperpixel=");
if (bpp != NULL) {
char* end;
bpp += strlen("bitsperpixel=");
end = strchr(bpp, ' ');
if (end == NULL) {
end = bpp + strlen(bpp);
}
_client_fb.bits_per_pixel = strtol(bpp, &end, 0);
}
}
if (!_client_fb.bits_per_pixel) {
derror("Unexpected core framebuffer reply: %s\n"
"Bits per pixel property is not there, or is invalid\n", connect_message);
core_connection_close(_client_fb.core_connection);
core_connection_free(_client_fb.core_connection);
_client_fb.core_connection = NULL;
return NULL;
}
// Now that we're connected lets initialize the descriptor.
_client_fb.fb = fb;
_client_fb.sock = core_connection_get_socket(_client_fb.core_connection);
_client_fb.fb_state = WAIT_HEADER;
_client_fb.reader_buffer = (uint8_t*)&_client_fb.update_header;
_client_fb.reader_offset = 0;
_client_fb.reader_bytes = sizeof(FBUpdateMessage);
if (connect_message != NULL) {
free(connect_message);
}
// At last setup read callback, and start receiving the updates.
if (qemu_set_fd_handler(_client_fb.sock, _clientfb_read_cb, NULL, &_client_fb)) {
derror("Unable to set up framebuffer read callback\n");
core_connection_close(_client_fb.core_connection);
core_connection_free(_client_fb.core_connection);
_client_fb.core_connection = NULL;
return NULL;
}
{
// Force the core to send us entire framebuffer now, when we're prepared
// to receive it.
FBRequestHeader hd;
SyncSocket* sk = syncsocket_init(_client_fb.sock);
hd.request_type = AFB_REQUEST_REFRESH;
syncsocket_start_write(sk);
syncsocket_write(sk, &hd, sizeof(hd), 500);
syncsocket_stop_write(sk);
syncsocket_free(sk);
}
fprintf(stdout, "Framebuffer %s is now attached to the core %s\n",
protocol, sock_address_to_string(console_socket));
return &_client_fb;
}